[dns-operations] online version checks

[Paul Vixie]

> Date: Fri, 31 Dec 2010 11:16:20 -0500
> From: Andrew Sullivan <ajs at shinkuro.com>
> 
> Why not just follow along with the existing approach already standardized:
> 
> http://www.rfc-editor.org/rfc/rfc5001.txt

RFC 5001 defines an option code not an owner name schema.  it's good for
learning by side effect but it's not good for making direct inquiries.